Install bbdb3 by entering the following commands in the terminal:
sudo apt update sudo apt install bbdb3
Reboot of the BBDB Insidious Big Brother Database for Emacs
This is a reboot of BBDB, the Insidious Big Brother Database for Emacs. It provides an address book for email and snail mail addresses, phone numbers and the like. It can be linked with various Emacs mail clients (Rmail, Gnus, VM). BBDB is fully customizable.